<template>
    <div class="details wrap">
    <Crumb :nav="nav"></Crumb>
    <main>
      <div class="content">
        <div class="l">
          <div class="bigImg">
            <img
              :src="imgBaseUrl + bigImg"
              width="100%"
              height="100%"
              alt=""
            />
          </div>
          <ul>
            <li v-for="item,index in productInfo.imgAltas" :key="item.src" @mouseenter="imgTab(index,item.src)">
              <img
                :src="imgBaseUrl + item.src"
                width="100"
                height="100"
                alt=""
                :style = "{opacity: num==index?1:0.5}"
              />
            </li>
          </ul>
        </div>
        <div class="r">
          <div class="top">
            <h2>{{productInfo.name}}</h2>
            <p>{{ productInfo.seriesSubTitle }}</p>
            <div class="score">{{productInfo.coin}}积分</div>
          </div>
          <div class="down">
            <section v-for="item,index in productInfo.parameterJson" :key="index">
              <strong>选择{{ item.title }}</strong>
              <ul>
                <li :class="val.currentActivate?'active':''" v-for="val in item.parameters" :key="val.id" @click="toGoodsPage(val.id)">
                  {{ val.title }}
                </li>
              </ul>
            </section>
            <div style="margin:10px 0;">
                <strong
              >数量 <span>*礼品库存{{productInfo.stock}}件</span></strong
            >
            <div class="step">
              <div class="reduce" @click="stepFn(-1)">-</div>
              <input type="text" disabled v-model="stepNum" />
              <div class="add" @click="stepFn(1)">+</div>
            </div>
            </div>
            <div class="btns">
              <div class="addToCart" @click="addTocart()">加入购物车</div>
              <div class="buyNow">立即购买</div>
            </div>
          </div>
        </div>
      </div>
      <aside>
        <h3>你还可以兑换</h3>
        <ul>
          <li v-for="item in themYouCanBuy" :key="item.id" @click="toGoodsPage(item.id)">
            <div class="l">
              <img :src="imgBaseUrl + item.img" alt="">
            </div>
            <div class="r">
              <div class="title">{{item.name}}</div>
              <div class="score">
                <span>{{item.coin}}</span>
                积分
              </div>
            </div>
          </li>
        </ul>
      </aside>
    </main>
    <ul class="tabs">
        <li :class="!isShowIssue?'active':''" @click="isShowIssue=false">
            礼品详情
        </li>
        <li :class="isShowIssue?'active':''" @click="isShowIssue=true">
            常见问题
        </li>
    </ul>
    <div v-show="!isShowIssue" v-html="productInfo.description" >
        <!-- 商品详情的内容盒子 -->
    </div>
    <div class="issue" v-show="isShowIssue">
        <!-- 常见问题的内容盒子 -->
      <h4>兑换后运费如何收取？</h4>
      <p>
        商城内大部分实物产品均可包邮，也支持上门自提。虚拟产品则无需运费，可在兑换后直接使用。
      </p>
      <p class="mb20">
        （注：新疆，西藏，内蒙古，青海，海南，宁夏暂不支持包邮，在此地区兑换商品需提前与客服确认运费。）
      </p>
      <h4>如何申请退换货？</h4>
        <p>所有产品均为鸡腿兑换礼品，无质量问题不支持退换货；</p>
        <p>如因喜好不同，或到货后后悔等原因，不支持退货；</p>
        <p>因客户原因如联系方式有误、电话停机、不接电话、无理由拒收等造成快件无法正常签收的情况，叩丁狼均不进行补发或赔付；</p>
        <p>如因质量问题需要退货，将由客服人员与客户联系，确认邮寄地址与流程。退回物品不得有人为损坏或使用痕迹，否则拒绝退换；</p>
        <p class="mb20">如顾客选择自行寄回商品，请先垫付运费，到货验证商品后，叩丁狼将以鸡腿发放形式为用户报销运费，不接受单方面到付件。</p>
        <h4>如何开具发票？</h4>
        <p>叩丁狼积分商城产品均为定制礼品，使用积分兑换的产品均不支持开票。</p>
        <h4>关于鸡腿价格问题</h4>
        <p class="mb20">因可能存在系统缓存、页面更新延迟等不确定性情况，导致价格显示异常，商品具体售价请以订单结算页价格为准。如您发现异常情况出现，请立即联系我们补正，以便您能顺兑换。</p>
        <h4>联系我们</h4>
        <p>www.wolfcode.cn</p>
        <p class="mb20">微信公众号搜索“叩丁狼”</p>
    </div>
  </div>
</template>

<script>
import Crumb from '@/components/Crumb'
import {GoodDetailsAPI, addShopCartApI} from "@/repuest/api"
import { mapActions } from 'vuex';
export default {
    components:{
        Crumb
    },
    /* watch: {
      "$route.path" : { 
        handler() {
          console.log("路径id发生了变化");
          this.$router.go(0); // 刷新页面
        },
        deep: true // 这里必须使用深度监视
      } 
      "$route.query.id" : { // 可以直接监视ID
        handler() {
          this.$router.go(0); // 刷新页面
        }
      }
    }, */
    methods: {
      ...mapActions({
        asyncChanIsShowToast: "toastStatus/asyncChanIsShowToast"
      }),
      toGoodsPage(id) {
        // 跳转到详情页
        this.$router.push(`/details?id=${id}`);
        this.getDetailsData(id);
      },
      async getDetailsData(goodId) {
        let res = await GoodDetailsAPI(goodId);
        if(!res) return;
        this.productInfo = res.data.productInfo;
        this.themYouCanBuy = res.data.themYouCanBuy;
        this.nav = res.data.nav;
        // 大图路径初始化
        this.bigImg = this.productInfo.imgAltas[0].src;
        // 小图的当前样式的初始化
        this.num = 0;
        // 计数器初始化
        this.stepNum = 1;
        // 对productInfo.description进行修改，图片带前缀的
        this.productInfo.description = this.productInfo.description.replaceAll("upload/",this.imgBaseUrl+"/upload/")
      },
      imgTab(index, src) {
        // 小图片的切换
        this.num=index;
        // 大图片的切换
        this.bigImg = src;
      },
      /* red() {
        this.stepNum > 1 ? this.stepNum-- : "";
      },
      add() {
        this.stepNum < this.productInfo.stock ? this.stepNum++ : "";
      } */
      stepFn(val) {
        if((val == -1 && this.stepNum <= 1) || (val == 1 && this.stepNum >= this.productInfo.stock)) {
          return;
        }
        this.stepNum += val;
      },
      async addTocart() {
        let productId = this.$route.query.id
        let res = await addShopCartApI({
          productId,
          total: this.stepNum,
        })
        if(!res) return;
        // 成功加入购物车之后
        this.stepNum = 1;
        // alert("加入成功");
        // 提示加入成功
        this.asyncChanIsShowToast({
          type: "success",
          msg: "加入购物车成功"
        });
        // 页面右上角购物车数量
        // 组件重载
        this.$emit('fn');
      }
    },
    data () {
        return {
            // 是否展示常见问题
            isShowIssue: false,
            // 步进器数字 
            stepNum:1,
            // 面包屑导航
            nav: [],
            // 商品详情
            productInfo: {
              name: ""
            },
            // 你还可以兑换
            themYouCanBuy: [],
            // 标记小图片数组的当前样式在哪一个上
            num: 0,
            // 大图片的路径
            bigImg: ""
        }
    },
    created(){
        // 设置页面滚动高度为0
        document.documentElement.scrollTop = 0;
        
        let goodId = this.$route.query.id;
        // 获取到id后，发起请求
        this.getDetailsData(goodId);
    }
}
</script>
 
<style lang = "less" scoped>
@import "../assets/css/public.less";

.details {
  main {
    margin-bottom: 52px;
    display: flex;
    .content {
      width: 884px;
      display: flex;
      justify-content: space-between;
      .l {
        .bigImg {
          width: 459px;
          height: 440px;
          background-color: #fcf;
          margin-bottom: 21px;
        }
        ul {
          width: 459px;
          display: flex;
          justify-content: space-between;
          li {
            width: 100px;
            height: 100px;
            // background-color: #cff;
            cursor: pointer;
            /* img {
              filter: brightness(50%);
            }
            &:hover {
              img {
                filter: brightness(100%);
              }
            } */
          }
        }
      }
      .r {
        padding: 7px 49px 0 31px;
        .top {
          padding-bottom: 23px;
          border-bottom: 1px solid #ececec;
          h2 {
            font-size: 28px;
            color: #000000;
          }
          p {
            margin-top: 15px;
            font-size: 14px;
            font-weight: 300;
            color: #999999;
          }
          .score {
            font-size: 28px;
            font-weight: bold;
            color: #fd604d;
            margin-top: 26px;
          }
        }
        .down {
          padding-top: 19px;
          strong {
            font-weight: 300;
            color: #000000;
            margin-bottom: 14px;
            display: block;
            span {
              color: #666;
              font-size: 14px;
            }
          }
          ul {
            width: 100%;
            overflow: hidden;
            li {
              padding: 5px 10px;
              cursor: pointer;
              height: 32px;
              float: left;
              text-align: center;
              line-height: 32px;
              color: #666666;
              border: 1px solid #d1d1d1;
              margin-right: 20px;
              margin-bottom: 11px;
              &.active {
                border-color: @base-color;
                color: @base-color;
              }
            }
          }
          .step {
            background: #fff;
            width: 106px;
            margin-bottom: 24px;
            height: 32px;
            display: flex;
            justify-content: space-between;
            .reduce,
            .add {
              width: 30px;
              text-align: center;
              line-height: 32px;
              height: 32px;
              cursor: pointer;
              box-sizing: border-box;
              border: 1px solid #ccc;
              user-select: none;
            }
            input {
              width: 46px;
              height: 32px;
              user-select: none;
              border: 0;
              box-sizing: border-box;
              border-top: 1px solid #ccc;
              padding: 0;
              text-indent: 1.5em;
              outline: none;
              border-bottom: 1px solid #ccc;
            }
          }
          .btns {
            display: flex;
            margin-bottom: 25px;
            div {
              width: 150px;
              height: 46px;
              line-height: 46px;
              text-align: center;
              margin-right: 19px;
              cursor: pointer;
              color: #fff;
              &.addToCart {
                background: #3dc36b;
              }
              &.buyNow {
                background: #fd604d;
              }
            }
          }
          .love_share {
            display: flex;
            .love {
              display: flex;
              align-items: center;
              padding-right: 16px;
              border-right: 1px solid #666;
              img {
                margin-right: 12px;
              }
              span {
                color: #666666;
              }
            }
            .share {
              padding-left: 18px;
            }
          }
        }
      }
    }
    aside {
      padding-left: 19px;
      box-sizing: border-box;
      width: 230px;
      border-left: 1px solid #ddd;
      h3 {
        font-size: 18px;
        color: #333333;
        margin-bottom: 20px;
      }
      ul {
        li {
          margin-bottom: 30px;
          display: flex;
          cursor: pointer;
          justify-content: space-between;
          .l {
            width: 80px;
            height:80px;
            margin-right: 10px;
            background-color: #ffc;
            img {
              width: 100%;
              display: block;
              border: 1px solid transparent;
            }
          }
          .r{
            width: 140px;
            display: flex;
            justify-content: space-around;
            flex-direction: column;
            .title {
              /* 超出一行变省略号 */
              text-overflow: ellipsis;
              width: 100%;
              font-weight: bold;
              overflow: hidden;
              white-space: nowrap;
              font-size: 14px;
              color: #666666;
            }
            .score {
              color: #666666;
              span {
                font-weight: bold;
                font-size: 18px;
                color: #ff5e0f;
              }
            }
          }
          &:hover {
            img {
              border: 1px solid @base-color;;
            }
            .title {
              color: @base-color;;
            }
          }
        }
      }
    }
  }
  .tabs {
      border-top: 1px solid #ececec;
    display: flex;
    width: 100%;
    margin-bottom: 27px;
    li {
      width: 120px;
      height: 50px;
      cursor: pointer;
      background: #fff;
      text-align: center;
      line-height: 50px;
      &.active {
        background: #ececec;
        font-weight: bold;
      }
    }
  }
  .issue {
      padding-bottom: 40px;
    h4 {
      font-size: 18px;
      font-weight: bold;
      margin-bottom: 10px;
      margin-top: 20px;
    }
    p{
        line-height: 1.4em;
    }
  }
}  
</style>